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Liquid Ultrasonic Flowmeter

Ultra Series Ultrasonic Flowmeters

The Smith Meter® Ultra Series™ Liquid Ultrasonic Meter is the culmination of FMC Technologies' long history of measurement expertise technology. The Ultra Series utilizes transit time technology to provide highly accurate measurement in the same tradition as the Smith Meter Positive Displacement and Turbine Meters. The non-intrusive design has no moving parts to provide a low maintenance measurement solution and offers a wide dynamic flow range, wide viscosity application range with low differential pressure.

Backed by FMC Technologies' world-class customer service, the Ultra Series is the cutting edge solution for custody and non-custody transfer measurement applications.

With more than 300,000 custody transfer meters installed worldwide, the measurement experts at FMC Technologies offer advice you can rely on to help you determine if this latest advancement in technology is the best solution for your application.

Ultrasonic Benefits


  • Low Pressure Drop - Drop is the same as an equal length of straight pipe
  • Low Maintenance - No moving parts that need replacement due to wear; especially beneficial in severe operating environments
  • Ideal for Problematic Applications - Non-intrusive parts help avoid product buildup on equipment 
  • Operational Flexibility - Bi-directional flow reduces time required to redirect product flow

 Ultrasonic Flowmeters

 Ultrasonic Features

  • Field-Proven Electronics - The same electronic processor and rugged packing as the FMC Technologies MPU Series gas ultrasonic meters which have been proven in the world's harshest field environments.
  • In-line Transducer Replacement - Designed so there is no need for special tooling or process shutdown to replace a transducer
  • Real Time Diagnostics - WinScreen Software provides real-time logs, trends, signal performance and parameter reports for operation, diagnostics and maintenance.
  • Reciprocity - Exclusive transducer and electronic design that virtually eliminates zero flow offset and drift to provide long-term measurement stability independent of pressure, temperature, and transducer aging

Six Path Ultrasonic Meter

Sizes: 6" - 20"

*For larger sizes, consult factory


Compliant with API MPMS Chapter 5.8 and OIML R-117-1

Unique Features:

  • Custody Transfer Accuracy - Meets or exceeds custody transfer requirement worldwide
  • Measurement Stability - Unique six-path configuration provides optimum compensation for changes in secondary flow profiles of crude oils - matching and surpassing the performance of any other multi-path ultrasonic flow meter on the market


Measurement of refined petroleum products and crude oils for:

  • Custody transfer
  • Line integrity
  • Off-loading and on-loading
  • Inventory control
  • Allocation
  • Line balancing